tert-butyl 3-[(2S)-2-amino-3-(4-cyanophenoxy)propyl]-3-aza-bicyclo[3.2.1]oct-8-yl(methyl)carbamate 、
氯甲酸甲酯 在
三乙醇胺 、
sodium carbonate 作用下,
以
4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran 为溶剂,
以0.6 g (45%)的产率得到methyl (1S)-2-{8-[(tert-butoxycarbonyl)(methyl)amino]-3-aza-bicyclo[3.2.1]oct-3-yl}-1-[(4-cyanophenoxy)methyl]ethylcarbamate